How to make foam bricks? Introduction to the production process of foam bricks

Foam bricks are made of lime, slag, sand, fly ash, air-forming agent, cement, bubble stabilizer and regulator as the main raw materials. They are ground, metered and batched, stirred and poured. Lightweight porous concrete products manufactured through processes such as air expansion, static stopping, cutting, curing, and finished product processing. Below, the technical staff of Guangzhou Oufu Foam Brick Equipment Manufacturer will briefly introduce "How are foam bricks made? What does the production process of foam bricks include?".

1. Four main raw material formulas for the foam brick production process:

(1) A series of cement, lime and sand formulas with sand (including tailings powder) as the main raw material; Cement, lime, sand (tailings powder), and slag formula.

(2) A series of cement, lime and fly ash formulas using fly ash as the main raw material; lime and fly ash formulas. (3) Cement, lime, coal grinding stone formula

(4) The quality of fly ash, sand, lime and cement formula raw materials directly affects the quality of products and also affects process control, so raw material quality standards must be formulated , in order to strengthen production management, improve product quality, and improve corporate efficiency.

2. Introduction to the production process of foam bricks. Simply put, the production process of foam brick production equipment includes: feeding - mixing - pouring - foaming - demoulding - cutting - Stacking - Maintenance before leaving the factory.

1. Loading: Pour the prepared raw materials into the hopper through shipment. After automatic measurement, the materials are evenly added to the pouring mixer. This process allows the machine to automatically load, measure, and mix.

2. Stirring: Add cement, water, foaming agent, etc. to make cement slurry from the raw materials, and stir thoroughly.

3. Pouring: The mixed slurry is poured into the prepared mold in sequence.

4. Foaming: The prepared molds are transported to the initial curing room for foaming and initial setting. Under a certain temperature and humidity, the foam and cement slurry are fully mixed (Oufu equipment adopts exclusive foaming technology , the foaming pores are uniform and the strength is good in a short time). 5. Demoulding: After a period of time, after the green body has initially solidified and reached cutting strength, it can be demoulded (Oufu equipment can automatically return to the mold).

6. Cutting: The demoulded blank is transferred to the cutting equipment line for vertical and cross cutting to make corresponding product specifications (Oufu exclusively develops high-strength block cutting equipment with fast speed , small damage).

7. Stacking: The cut products are transported to the finished product stacking area and placed neatly one by one.

8. Maintenance before leaving the factory: The final product is cured under constant temperature and humidity conditions for 2 to 3 days. Or it can be used after 7 to 10 days of natural curing.

3. Benefits of foam bricks in the application of frame enclosure structures and high-rise buildings

1. Foam bricks have good earthquake resistance. Because foam bricks are very light, they greatly reduce the weight of the building and are two levels higher in earthquake resistance than clay brick buildings.

2. Foam bricks have a small bulk density, which reduces the weight of the building. The bulk density of foam bricks is generally 300-800kg/m3. Foam bricks can float on the water. Foam bricks are only 1/4 of the weight of solid clay bricks. Foam bricks are 1/2 of the weight of hollow blocks. Foam bricks can reduce the load on the wall. 50--60%, the building's dead weight is reduced by 20--30%, the construction speed is fast, and the labor intensity of workers and construction costs are greatly reduced.

3. Foam bricks have excellent sound absorption and insulation properties. The porous structure of foam bricks gives them good sound absorption and sound insulation properties. The insulation volume of a 240mm thick wall is 58dB, which can fully meet the sound insulation requirements of single-wall partitions. 4. Foam bricks have high strength, good processability and various specifications and sizes. The strength of foam bricks is the same as that of autoclaved aerated blocks; foam brick equipment does not require coarse aggregate, so it can be sawed, planed, glued, and nailed, and can be processed as needed to facilitate decoration; foam bricks are available in a variety of specifications and sizes to meet various needs. kind of masonry needs.

4. Foam bricks have significant thermal insulation properties and greatly reduce building energy consumption. The thermal conductivity of foam bricks is 0.168w/(m.k). The thermal insulation effect of foam bricks is 4 times that of clay bricks and 3 times that of hollow blocks. It is warm in winter and cool in summer, which greatly reduces the running time of air conditioning and saves 30% of electricity consumption. 50%, foam brick is the first choice wall material to achieve energy saving in buildings.